[horde] Message send failed: Error connecting to SMTP serve

[Luboš Malý]

Hi all,
I have trouble with Egroupware which is using from version 14.2 
Horde_Smtp. Everything was working fine until I did upgrade from
EGW 14.1 with phpMailer to 14.2 with Horde_Smtp.

Now I can't send mail. Always got this error in EGW aplication.
"Message send failed: Error connecting to SMTP server."

And in Apache2 error.log these errors.

[Tue Jan 13 12:01:52 2015] [error] [client 192.168.0.240] An error happened 
(Horde_Mime_Exception): Error connecting to SMTP server., referer: http://
192.168.0.204/egroupware/index.php?menuaction=mail.mail_compose.compose&id=
(http://192.168.0.204/egroupware/index.php?menuaction=mail.mail_compose.compose&id=)
[Tue Jan 13 12:01:52 2015] [error] [client 192.168.0.240] #0 /usr/share/php/
Horde/Mime/Mail.php(479): Horde_Mime_Part->send('ambruska at seznam...', Object
(Horde_Mime_Headers), Object(Horde_Mail_Transport_Smtphorde)), referer: 
http://192.168.0.204/egroupware/index.php?menuaction=mail.mail_compose.
compose&id=
(http://192.168.0.204/egroupware/index.php?menuaction=mail.mail_compose.compose&id=)
[Tue Jan 13 12:01:52 2015] [error] [client 192.168.0.240] #1 /usr/share/
egroupware/phpgwapi/inc/class.egw_mailer.inc.php(389): Horde_Mime_Mail->send
(Object(Horde_Mail_Transport_Smtphorde), true), referer: http://192.168.
0.204/egroupware/index.php?menuaction=mail.mail_compose.compose&id=
(http://192.168.0.204/egroupware/index.php?menuaction=mail.mail_compose.compose&id=)
[Tue Jan 13 12:01:52 2015] [error] [client 192.168.0.240] #2 /usr/share/
egroupware/mail/inc/class.mail_compose.inc.php(2641): egw_mailer->send(), 
referer: http://192.168.0.204/egroupware/index.php?menuaction=mail.mail_
compose.compose&id=
(http://192.168.0.204/egroupware/index.php?menuaction=mail.mail_compose.compose&id=)
[Tue Jan 13 12:01:52 2015] [error] [client 192.168.0.240] #3 /usr/share/
egroupware/mail/inc/class.mail_compose.inc.php(292): mail_compose->send
(Array), referer: http://192.168.0.204/egroupware/index.php?menuaction=mail.
mail_compose.compose&id=
(http://192.168.0.204/egroupware/index.php?menuaction=mail.mail_compose.compose&id=)
[Tue Jan 13 12:01:52 2015] [error] [client 192.168.0.240] #4 [internal 
function]: mail_compose->compose(Array), referer: http://192.168.0.204/
egroupware/index.php?menuaction=mail.mail_compose.compose&id=
(http://192.168.0.204/egroupware/index.php?menuaction=mail.mail_compose.compose&id=)
[Tue Jan 13 12:01:52 2015] [error] [client 192.168.0.240] #5 /usr/share/
egroupware/phpgwapi/inc/common_functions.inc.php(1047): call_user_func
(Array, Array), referer: http://192.168.0.204/egroupware/index.php?
menuaction=mail.mail_compose.compose&id=
(http://192.168.0.204/egroupware/index.php?menuaction=mail.mail_compose.compose&id=)
[Tue Jan 13 12:01:52 2015] [error] [client 192.168.0.240] #6 /usr/share/
egroupware/etemplate/inc/class.etemplate_new.inc.php(315): ExecMethod('mail.
mail_compo...', Array), referer: http://192.168.0.204/egroupware/index.php?
menuaction=mail.mail_compose.compose&id=
(http://192.168.0.204/egroupware/index.php?menuaction=mail.mail_compose.compose&id=)
[Tue Jan 13 12:01:52 2015] [error] [client 192.168.0.240] #7 /usr/share/
egroupware/mail/inc/class.mail_compose.inc.php(3113): etemplate_new::ajax_
process_content('mail_maly_54b4f...', Array, false), referer: http://
192.168.0.204/egroupware/index.php?menuaction=mail.mail_compose.compose&id=
(http://192.168.0.204/egroupware/index.php?menuaction=mail.mail_compose.compose&id=)
[Tue Jan 13 12:01:52 2015] [error] [client 192.168.0.240] #8 [internal 
function]: mail_compose::ajax_send('mail_maly_54b4f...', Array, false), 
referer: http://192.168.0.204/egroupware/index.php?menuaction=mail.mail_
compose.compose&id=
(http://192.168.0.204/egroupware/index.php?menuaction=mail.mail_compose.compose&id=)
[Tue Jan 13 12:01:52 2015] [error] [client 192.168.0.240] #9 /usr/share/
egroupware/phpgwapi/inc/class.egw_json.inc.php(163): call_user_func_array
(Array, Array), referer: http://192.168.0.204/egroupware/index.php?
menuaction=mail.mail_compose.compose&id=
(http://192.168.0.204/egroupware/index.php?menuaction=mail.mail_compose.compose&id=)
[Tue Jan 13 12:01:52 2015] [error] [client 192.168.0.240] #10 /usr/share/
egroupware/phpgwapi/inc/class.egw_json.inc.php(82): egw_json_request->
handleRequest('mail_compose::a...', Array), referer: http://192.168.0.204/
egroupware/index.php?menuaction=mail.mail_compose.compose&id=
(http://192.168.0.204/egroupware/index.php?menuaction=mail.mail_compose.compose&id=)
[Tue Jan 13 12:01:52 2015] [error] [client 192.168.0.240] #11 /usr/share/
egroupware/json.php(105): egw_json_request->parseRequest('mail_compose::
a...', '{"request":{"pa...'), referer: http://192.168.0.204/egroupware/
index.php?menuaction=mail.mail_compose.compose&id=
(http://192.168.0.204/egroupware/index.php?menuaction=mail.mail_compose.compose&id=)
[Tue Jan 13 12:01:52 2015] [error] [client 192.168.0.240] #12 {main}, 
referer: http://192.168.0.204/egroupware/index.php?menuaction=mail.mail_
compose.compose&id=
(http://192.168.0.204/egroupware/index.php?menuaction=mail.mail_compose.compose&id=)
[Tue Jan 13 12:01:52 2015] [error] [client 192.168.0.240] # Instance=
default, User=maly, Request=POST http://192.168.0.204/egroupware/json.php?
menuaction=mail_compose::ajax_send
(http://192.168.0.204/egroupware/json.php?menuaction=mail_compose::ajax_send)
, User-agent=Mozilla/5.0 (Windows NT 6.1; WOW64; rv:29.0) Gecko/20100101 
Firefox/29.0, referer: http://192.168.0.204/egroupware/index.php?menuaction=
mail.mail_compose.compose&id=
(http://192.168.0.204/egroupware/index.php?menuaction=mail.mail_compose.compose&id=)

I spent days, weeks to try solve my problem, but with no success. And I do 
not know what else to try.
So I need some one who knows what these errors in apache2 error.log means 
and is willing to help me.

I appreciate any hint,tip or whatever.
Thanks

Lubos